<div id="icon_timkiem">
    <img src="./Picture/bg_search_mid.gif" />
</div>

<form action="" method="post">
    <div id="list_timkiem">
        <select name="timtheo">
            <option value="0" hidden="1">Tìm theo</option>
            <option value="1">Tên</option>
            <option value="2">Đơn giá</option>
            <option value="3">Nhà sản xuất</option>
        </select>
    </div>
    
    <div id="key_timkiem">
        <span>Từ khóa: </span><input type="search" id="tk_text" name="key"/>
    </div>
    <div id="tk_btn">
        <input type="submit" value="Tìm" name="timkiem"/>
    </div>
</form>